April 29, 2008

Crack propagation evaluation of polymer composite FRP panels subjected to static and cyclic loading

By: Erbay, Omer, Phillip Sharff

Abstract: This paper summarizes a multiphase analytical and experimental study on evaluating the propensity for small delaminations in fiber-reinforced-plastic (FRP) composite panels to propagate under both static and cyclic (wind) loads. Finite-...

April 29, 2008

Approximation for seismic analysis of not-flat-bottom axisymmetric tanks

By: Atis Liepins, Juneja, Gunjeet

Abstract: Our proposal that some of the parameters of the two-mass model for a not-flat-bottom tank may be approximated with sufficient accuracy for use in design by an equivalent cylindrical tank with a flat bottom with the same volume and free...

April 29, 2008

Design requirements for prequalified steel moment connections: Their historic development and present-day use

By: Ronald Hamburger, Hewitt, Christopher M.

Abstract: While engineers in the Western U.S. are likely familiar with the rigorous connection design requirements instituted following the Northridge earthquake, many engineers in the central and eastern U.S. are just becoming familiar with the...

April 29, 2008

Steel connection design for structural integrity

By: Ronald Hamburger, Gustafson, Kurt, Cleland, Ned L.

Abstract: Since the terrorist attacks of September 11, 2001 and the collapse of three very tall buildings at New York's World Trade Center, some members of the public, building officials, legislators and engineers have stated a belief that...

April 29, 2008

Inelastic cyclic testing of the kaiser bolted bracket moment connection

By: Adan, Scott M., Gibb, William

Abstract: Developed by Steel Cast Connections, Lehigh University, and IFC Kaiser Engineers, the Kaiser bolted bracket (KBB) is a proprietary steel beam-to-column moment-resisting connection. The connection consists of cast high-strength steel...

April 29, 2008

Problems with the partially engineered house

Abstract: Most wood-frame houses are built without the benefit of structural design. Often, when engineered wood components are called for, the local building official will insist that these elements be designed by a registered professional...

April 29, 2008

The importance of proper detailing and design on the performance of wood assemblies exposed to the environment

By: Judson Taylor, Kuivanen, David P.

Abstract: Wood has been, and will continue to be, a valuable resource for construction. Wood is user-friendly and, properly managed and processed, environmentally friendly. While vulnerable to the environment from which it grew, properly designed...

March 30, 2008

Sill pan flashing for block-frame windows in recessed concrete openings-case studies

Abstract: Integrating sill pan window flashing can be challenging using block-frame windows or installing flashings within a recessed opening in a concrete wall. Two case studies summarize the details of design and retrofit installation for sill...

March 30, 2008

Durable, Sustainable Exteriors

Abstract: There seem to be as many wall types as there are definitions of "sustainable." Clearly, to be sustainable, the building wall must be durable - able to stand the test of time. Sustainable wall systems resist the effects of...

February 27, 2008

World Trade Center 5 Failure Analysis

By: Kevin LaMalva, Barnett, Jonathan R., Donald Dusenberry

Abstract: This article describes an analysis of the structural collapse that occurred in World Trade Center (WTC) building 5 due to fire exposure on 11 September 2001. It is hypothesized that the steel column-tree assembly failed during the...